| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8 | Output Triode |  |   | 
 |   | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
|  | RF Pentode |  |  | 
 |  | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
|  | Triode Pentode |  |  | 
 |  | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
|  | Triode Pentode |  |  | 
 |   | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
|  | Double Pentode |  |  | 
 |   | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
|  | Triode Pentode |  |  | 
 |   | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
|  | Double Diode Double Triode |  |  | 
 |   | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8CM7 | Double Triode |  |   | 
 |   | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
|  | RF Pentode |  |  | 
 |  | 
 | 
|  | 
| 
 | 
| 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8D7 | Pentode |   |   | 
 | 6BS7 | 
 | 
| 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8F66R | Tetrode (Power) |   |   | 
 | 6166A CR192A | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8GJ7 | Triode Pentode |   |   | 
 | PCF801 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8FQ7 | Double Triode | 1965 | B9A | 
 |   | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8HG8 | Triode Pentode | 1960 |   | 
 | PCF86 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8LT8 | Triode Pentode | 1965 | B9A | 
 |   | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8MA16 | Magnetron (Q-Band Pulse) |   |   | 
 | M5053 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8MA20 | Magnetron (Q-Band Pulse) |   |   | 
 | M5055 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8MA23 | Magnetron (Q-Band Pulse) |   |   | 
 | M5054 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8MA26 | Magnetron (Q-Band Pulse) |   |   | 
 | M5059 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8NT5 | Noise Tube (Q-Band) |   |   | 
 | BS386 | 
 | 
| 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8RK17 | Klystron (Oscillator) |   |   | 
 | K3038 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8RK19 | Klystron (Oscillator) |   |   | 
 | K3039 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8RK22 | Klystron (Oscillator) |   |   | 
 | K3035 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8T11R | Tetrode (Power) |   |   | 
 | 6166A CR192A | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8T71R | Triode (Power) |   |   | 
 | BR189 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8T92R | Triode (Power) |   |   | 
 | BR175 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8TFK2 |   |   |   | 
 | K3043 | 
 | 
| 
| Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |  
| 8TFK20 |   |   |   | 
 | K3059 | 
 |